Fuel Pressure Regulators

[Shadowhunter]

I am wondering what the differences between the various fuel pressure regulators on the market are.

There is the generic stuff like the isis:
Sonic motor also sells this for like $45.
Then you have the options like SARD,Nismo,Aeromotive etc. I am wondering if anyone has practical experience with the fpr I posted above and if you have run into any issues. Are there issues getting reliable flow and/or Diaphragm issues? My main concern is leakage.

I've seen people run the generic ones and have not heard anything bad, and if enjuku and sonic motor sell them I would think that they would be reliable enough to stake their reputation on them. But I know aeromotive and SARD make quality stuff. Money is not an issue but I'd rather not spend more of it unless I have a good reason to do so. So positives/negatives with any brand I mentioned and if you have had any practical experience or issues with the brands mentioned above would be most appreciated. Thanks in advance for the help and feedback.